I'm living in a rented property and the shower has a standby that is operated by a pull-cord. The shower is then turned on/off by a button in the shower.
Recently the standby has become jammed - I can't turn the shower off standby, and an LED is constantly lit.
My question: Does this mean the shower is using an appreciable/significant amount of power, or is it more akin to a standby on a TV set?
I know it must be doing something and need ot get it fixed, I just hope we don't end up with a big bill because of it.

